policy.c File Reference

#include "MagickCore/studio.h"
#include "MagickCore/cache-private.h"
#include "MagickCore/client.h"
#include "MagickCore/configure.h"
#include "MagickCore/configure-private.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/magick-private.h"
#include "MagickCore/memory_.h"
#include "MagickCore/memory-private.h"
#include "MagickCore/monitor.h"
#include "MagickCore/monitor-private.h"
#include "MagickCore/option.h"
#include "MagickCore/policy.h"
#include "MagickCore/policy-private.h"
#include "MagickCore/resource_.h"
#include "MagickCore/resource-private.h"
#include "MagickCore/semaphore.h"
#include "MagickCore/stream-private.h"
#include "MagickCore/string_.h"
#include "MagickCore/string-private.h"
#include "MagickCore/token.h"
#include "MagickCore/utility.h"
#include "MagickCore/utility-private.h"
#include "MagickCore/xml-tree.h"
#include "MagickCore/xml-tree-private.h"

Include dependency graph for policy.c:

Go to the source code of this file.

Data Structures
struct	_PolicyInfo
struct	_PolicyMapInfo

Macros
#define	PolicyFilename   "policy.xml"

Typedefs
typedef struct _PolicyMapInfo	PolicyMapInfo

Functions
static MagickBooleanType	IsPolicyCacheInstantiated (ExceptionInfo *)
static MagickBooleanType	LoadPolicyCache (LinkedListInfo *, const char *, const char *, const size_t, ExceptionInfo *)
static LinkedListInfo *	AcquirePolicyCache (const char *filename, ExceptionInfo *exception)
static PolicyInfo *	GetPolicyInfo (const char *name, ExceptionInfo *exception)
MagickExport const PolicyInfo **	GetPolicyInfoList (const char *pattern, size_t *number_policies, ExceptionInfo *exception)
static char *	AcquirePolicyString (const char *source, const size_t pad)
MagickExport char **	GetPolicyList (const char *pattern, size_t *number_policies, ExceptionInfo *exception)
MagickExport char *	GetPolicyValue (const char *name)
MagickExport MagickBooleanType	IsRightsAuthorized (const PolicyDomain domain, const PolicyRights rights, const char *pattern)
MagickExport MagickBooleanType	ListPolicyInfo (FILE *file, ExceptionInfo *exception)
MagickPrivate MagickBooleanType	PolicyComponentGenesis (void)
static void *	DestroyPolicyElement (void *policy_info)
MagickPrivate void	PolicyComponentTerminus (void)
MagickExport MagickBooleanType	SetMagickSecurityPolicy (const char *policy, ExceptionInfo *exception)
static MagickBooleanType	SetPolicyValue (const PolicyDomain domain, const char *name, const char *value)
MagickExport MagickBooleanType	SetMagickSecurityPolicyValue (const PolicyDomain domain, const char *name, const char *value, ExceptionInfo *exception)

Variables
static const PolicyMapInfo	PolicyMap []
static LinkedListInfo *	policy_cache = (LinkedListInfo *) NULL
static SemaphoreInfo *	policy_semaphore = (SemaphoreInfo *) NULL

Macro Definition Documentation

PolicyFilename

#define PolicyFilename   "policy.xml"

Definition at line 73 of file policy.c.

Typedef Documentation

PolicyMapInfo

typedef struct _PolicyMapInfo PolicyMapInfo

Function Documentation

AcquirePolicyCache()

static LinkedListInfo * AcquirePolicyCache ( const char *  filename, ExceptionInfo *  exception  )

static

Definition at line 170 of file policy.c.

References AcquireMagickMemory(), AppendValueToLinkedList(), DestroyConfigureOptions(), _PolicyInfo::domain, _PolicyMapInfo::domain, _PolicyInfo::exempt, GetConfigureOptions(), GetMagickModule, GetNextValueInLinkedList(), GetStringInfoDatum(), GetStringInfoPath(), LoadPolicyCache(), MagickCoreSignature, MagickFalse, MagickTrue, _PolicyInfo::name, _PolicyMapInfo::name, NewLinkedList(), _PolicyInfo::path, _PolicyInfo::pattern, _PolicyMapInfo::pattern, PolicyMap, ResourceLimitError, _PolicyInfo::rights, _PolicyMapInfo::rights, _PolicyInfo::signature, ThrowMagickException(), _PolicyInfo::value, and _PolicyMapInfo::value.

Referenced by IsPolicyCacheInstantiated().

AcquirePolicyString()

static char * AcquirePolicyString ( const char *  source, const size_t  pad  )

static

Definition at line 442 of file policy.c.

References AcquireMagickMemory(), ResourceLimitFatalError, and ThrowFatalException.

Referenced by GetPolicyList(), GetPolicyValue(), LoadPolicyCache(), and SetPolicyValue().

DestroyPolicyElement()

static void * DestroyPolicyElement ( void *  policy_info )

static

Definition at line 1042 of file policy.c.

References DestroyString(), _PolicyInfo::exempt, MagickFalse, _PolicyInfo::name, _PolicyInfo::path, _PolicyInfo::pattern, RelinquishMagickMemory(), and _PolicyInfo::value.

Referenced by PolicyComponentTerminus().

GetPolicyInfo()

static PolicyInfo * GetPolicyInfo ( const char *  name, ExceptionInfo *  exception  )

static

Definition at line 272 of file policy.c.

References CopyMagickString(), _PolicyInfo::domain, GetNextValueInLinkedList(), InsertValueInLinkedList(), IsPolicyCacheInstantiated(), LocaleCompare(), LockSemaphoreInfo(), MagickFalse, MagickPathExtent, MagickPolicyDomainOptions, MagickTrue, _PolicyInfo::name, ParseCommandOption(), policy_cache, policy_semaphore, RemoveElementByValueFromLinkedList(), ResetLinkedListIterator(), UndefinedPolicyDomain, and UnlockSemaphoreInfo().

Referenced by GetPolicyInfoList(), GetPolicyList(), GetPolicyValue(), and IsRightsAuthorized().

GetPolicyInfoList()

MagickExport const PolicyInfo ** GetPolicyInfoList	(	const char *	pattern,
		size_t *	number_policies,
		ExceptionInfo *	exception
	)

Definition at line 368 of file policy.c.

References AcquireQuantumMemory(), GetMagickModule, GetNextValueInLinkedList(), GetNumberOfElementsInLinkedList(), GetPolicyInfo(), GlobExpression(), IsEventLogging(), LockSemaphoreInfo(), LogMagickEvent(), MagickFalse, _PolicyInfo::name, policy_cache, policy_semaphore, ResetLinkedListIterator(), _PolicyInfo::stealth, TraceEvent, and UnlockSemaphoreInfo().

Referenced by ListPolicyInfo().

GetPolicyList()

MagickExport char ** GetPolicyList	(	const char *	pattern,
		size_t *	number_policies,
		ExceptionInfo *	exception
	)

Definition at line 465 of file policy.c.

References AcquirePolicyString(), AcquireQuantumMemory(), GetMagickModule, GetNextValueInLinkedList(), GetNumberOfElementsInLinkedList(), GetPolicyInfo(), GlobExpression(), IsEventLogging(), LockSemaphoreInfo(), LogMagickEvent(), MagickFalse, _PolicyInfo::name, policy_cache, policy_semaphore, ResetLinkedListIterator(), _PolicyInfo::stealth, TraceEvent, and UnlockSemaphoreInfo().

GetPolicyValue()

MagickExport char * GetPolicyValue

(

const char *

name

)

Definition at line 533 of file policy.c.

References AcquireExceptionInfo(), AcquirePolicyString(), DestroyExceptionInfo(), GetMagickModule, GetPolicyInfo(), IsEventLogging(), LogMagickEvent(), MagickFalse, TraceEvent, and _PolicyInfo::value.

Referenced by AcquirePixelCache(), AcquireStreamPixels(), AcquireUniqueSymbolicLink(), AcquireVirtualMemory(), ConnectPixelCacheServer(), GetMaxMemoryRequest(), GetPathTemplate(), OpenPixelCache(), RenderType(), SetMagickPrecision(), SetMagickResourceLimit(), SetMagickSecurityPolicyValue(), and ShredFile().

IsPolicyCacheInstantiated()

static MagickBooleanType IsPolicyCacheInstantiated ( ExceptionInfo *  exception )

static

Definition at line 581 of file policy.c.

References AcquirePolicyCache(), ActivateSemaphoreInfo(), LockSemaphoreInfo(), MagickFalse, MagickTrue, policy_cache, policy_semaphore, PolicyFilename, and UnlockSemaphoreInfo().

Referenced by GetPolicyInfo(), and SetMagickSecurityPolicy().

IsRightsAuthorized()

MagickExport MagickBooleanType IsRightsAuthorized	(	const PolicyDomain	domain,
		const PolicyRights	rights,
		const char *	pattern
	)

Definition at line 623 of file policy.c.

References AcquireExceptionInfo(), CommandOptionToMnemonic(), DestroyExceptionInfo(), _PolicyInfo::domain, ExecutePolicyRights, GetLogEventMask(), GetMagickModule, GetNextValueInLinkedList(), GetPolicyInfo(), GlobExpression(), LockSemaphoreInfo(), LogMagickEvent(), MagickFalse, MagickPolicyDomainOptions, MagickPolicyRightsOptions, MagickTrue, _PolicyInfo::pattern, policy_cache, policy_semaphore, PolicyEvent, ReadPolicyRights, ResetLinkedListIterator(), _PolicyInfo::rights, UnlockSemaphoreInfo(), and WritePolicyRights.

Referenced by AcquireFxInfoPrivate(), ExternalDelegateCommand(), FileToBlob(), FileToImage(), InterpretImageProperties(), InvokeDelegate(), InvokeDynamicImageFilter(), IsCoderAuthorized(), OpenBlob(), RegisterStaticModule(), and RegisterStaticModules().

ListPolicyInfo()

MagickExport MagickBooleanType ListPolicyInfo	(	FILE *	file,
		ExceptionInfo *	exception
	)

Definition at line 697 of file policy.c.

References CachePolicyDomain, CommandOptionToMnemonic(), _PolicyInfo::domain, ExecutePolicyRights, FormatLocaleFile(), GetPolicyInfoList(), LocaleCompare(), MagickFalse, MagickPolicyDomainOptions, MagickTrue, NoPolicyRights, _PolicyInfo::path, ReadPolicyRights, RelinquishMagickMemory(), ResourcePolicyDomain, SystemPolicyDomain, and WritePolicyRights.

LoadPolicyCache()

static MagickBooleanType LoadPolicyCache	(	LinkedListInfo *	cache,
		const char *	xml,
		const char *	filename,
		const size_t	depth,
		ExceptionInfo *	exception
	)

Definition at line 796 of file policy.c.

References AcquireCriticalMemory(), AcquirePolicyString(), AppendValueToLinkedList(), ConcatenateMagickString(), ConfigureError, ConfigureEvent, CopyMagickString(), DestroyString(), DirectorySeparator, _PolicyInfo::domain, _PolicyInfo::exempt, FileToXML(), GetMagickModule, GetNextToken(), GetPathComponent(), HeadPath, IsStringTrue(), LoadPolicyCache(), LocaleCompare(), LocaleNCompare(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickMaxRecursionDepth, MagickPathExtent, MagickPolicyDomainOptions, MagickPolicyRightsOptions, MagickTrue, _PolicyInfo::name, ParseCommandOption(), _PolicyInfo::path, _PolicyInfo::pattern, RelinquishMagickMemory(), ResourceLimitError, _PolicyInfo::rights, _PolicyInfo::signature, _PolicyInfo::stealth, ThrowMagickException(), and _PolicyInfo::value.

Referenced by AcquirePolicyCache(), LoadPolicyCache(), and SetMagickSecurityPolicy().

PolicyComponentGenesis()

MagickPrivate MagickBooleanType PolicyComponentGenesis

(

void

)

Definition at line 1016 of file policy.c.

References AcquireSemaphoreInfo(), MagickTrue, and policy_semaphore.

Referenced by MagickCoreGenesis().

PolicyComponentTerminus()

MagickPrivate void PolicyComponentTerminus

(

void

)

Definition at line 1063 of file policy.c.

References ActivateSemaphoreInfo(), DestroyLinkedList(), DestroyPolicyElement(), LockSemaphoreInfo(), policy_cache, policy_semaphore, RelinquishSemaphoreInfo(), and UnlockSemaphoreInfo().

Referenced by MagickCoreTerminus().

SetMagickSecurityPolicy()

MagickExport MagickBooleanType SetMagickSecurityPolicy	(	const char *	policy,
		ExceptionInfo *	exception
	)

Definition at line 1100 of file policy.c.

References _PolicyInfo::domain, GetNextValueInLinkedList(), IsPolicyCacheInstantiated(), LoadPolicyCache(), LockSemaphoreInfo(), MagickFalse, policy_cache, policy_semaphore, ResetLinkedListIterator(), ResourceComponentGenesis(), UndefinedPolicyDomain, and UnlockSemaphoreInfo().

SetMagickSecurityPolicyValue()

MagickExport MagickBooleanType SetMagickSecurityPolicyValue	(	const PolicyDomain	domain,
		const char *	name,
		const char *	value,
		ExceptionInfo *	exception
	)

Definition at line 1204 of file policy.c.

References CachePolicyDomain, CoderPolicyDomain, DelegatePolicyDomain, DestroyString(), FilterPolicyDomain, GetPolicyValue(), LocaleCompare(), magick_unreferenced, MagickFalse, MagickResourceInfinity, MagickResourceOptions, ModulePolicyDomain, ParseCommandOption(), PathPolicyDomain, ResetCacheAnonymousMemory(), ResetMagickPrecision(), ResetMaxMemoryRequest(), ResetStreamAnonymousMemory(), ResetVirtualAnonymousMemory(), ResourcePolicyDomain, SetMagickResourceLimit(), SetPolicyValue(), StringToInteger(), StringToMagickSizeType(), StringToSizeType(), and SystemPolicyDomain.

SetPolicyValue()

static MagickBooleanType SetPolicyValue ( const PolicyDomain  domain, const char *  name, const char *  value  )

static

Definition at line 1163 of file policy.c.

References AcquireCriticalMemory(), AcquirePolicyString(), AppendValueToLinkedList(), DestroyString(), _PolicyInfo::domain, _PolicyInfo::exempt, GetNextValueInLinkedList(), LocaleCompare(), LockSemaphoreInfo(), MagickCoreSignature, MagickFalse, MagickTrue, _PolicyInfo::name, policy_cache, policy_semaphore, RelinquishMagickMemory(), ResetLinkedListIterator(), _PolicyInfo::signature, UnlockSemaphoreInfo(), and _PolicyInfo::value.

Referenced by SetMagickSecurityPolicyValue().

Variable Documentation

policy_cache

LinkedListInfo* policy_cache = (LinkedListInfo *) NULL

static

Definition at line 131 of file policy.c.

Referenced by GetPolicyInfo(), GetPolicyInfoList(), GetPolicyList(), IsPolicyCacheInstantiated(), IsRightsAuthorized(), PolicyComponentTerminus(), SetMagickSecurityPolicy(), and SetPolicyValue().

policy_semaphore

SemaphoreInfo* policy_semaphore = (SemaphoreInfo *) NULL

static

Definition at line 134 of file policy.c.

Referenced by GetPolicyInfo(), GetPolicyInfoList(), GetPolicyList(), IsPolicyCacheInstantiated(), IsRightsAuthorized(), PolicyComponentGenesis(), PolicyComponentTerminus(), SetMagickSecurityPolicy(), and SetPolicyValue().

PolicyMap

const PolicyMapInfo PolicyMap[]

static

Initial value:

=
  {
    { UndefinedPolicyDomain, UndefinedPolicyRights, (const char *) NULL,
      (const char *) NULL, (const char *) NULL }
  }

Definition at line 124 of file policy.c.

Referenced by AcquirePolicyCache().